<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>测试</title>
    <script src="js/vue3.js"></script>
</head>
<body>
    <div id="app">{{message}}</div>
    <script>
        const {createApp} =Vue
        createApp({
            data(){
                return{
                   message:"Hello Rjy Vue3"
                }
            }
        }).mount('#app')
    </script>
</body>
</html>